[ALSA] ASoC pxa2xx build support

This patch builds ASoC pxa2xx support for Corgi, Spitz, Tosa and Poodle
Zaurus machines.
From: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig
index e7dab5b..ec821a5 100644
--- a/sound/soc/Kconfig
+++ b/sound/soc/Kconfig
@@ -23,6 +23,7 @@
 menu "SoC Platforms"
 depends on SND_SOC
 source "sound/soc/at91/Kconfig"
+source "sound/soc/pxa/Kconfig"
 endmenu
 
 # Supported codecs